package us.nchu.tomtiger.interceptor;

import org.springframework.web.servlet.HandlerInterceptor;
import org.springframework.web.servlet.ModelAndView;
import us.nchu.tomtiger.utils.UserUtil;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;

/**
 * Created by XiongXuan on 2018/1/10.
 */
public class ProjectInterceptor implements HandlerInterceptor {
    @Override
    public boolean preHandle(HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse, Object o) throws Exception {
        switch (httpServletRequest.getMethod()) {
            case "GET":
                return true;
            case "PUT":
            case "POST":
            case "DELETE":
                return checkLogin(httpServletRequest, httpServletResponse);
        }
        return true;
    }

    private boolean checkLogin(HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse) throws IOException {
        if (UserUtil.isLogin(httpServletRequest)) {
            return true;
        }
        else {
            UserUtil.goToLogin(httpServletRequest, httpServletResponse);
            return false;
        }
    }

    @Override
    public void postHandle(HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse, Object o, ModelAndView modelAndView) throws Exception {

    }

    @Override
    public void afterCompletion(HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse, Object o, Exception e) throws Exception {

    }
}
